Paper bag.



J. P. AMES. PAPER' BAG." APPL'IOATION FILED HAY 27. 1908.

:Patented July `18, 1911.

Mfg/fm reinforcing strip of JOHN F. AMES, OF CLEVELAND, OHIO.

Ill-AFER BAG.

naaste.

Specification of Letters Patent.

Patented July 18, 1911.

Application tiled May 27, 1908. Serial No. 435,219.

To all whom 'it may conc-fm: e

Be it known that l, JOHN F. AMES, citizen of the United States, residingat Cleveland, .in the county of Cuyahoga and State of 0hio, haveinvented new and useful lmprovements in Paper Bags, of which thefollowing is a specilication.

My invention relates to the manufacture of paper bags.

Paper bags are now used extensively for flour, cement and other thingsput up in the form of original packages. lt is common to iillthe bag,and after being filled, to tie the mouth of the bag. ln order to tie apaper bag, it requires the bag being made several inches longer thanotherwise neces sary, thereby resulting in the use of perhaps 20% morematerial than would be required if these bags could be made just theright length and sewed. lt is not possible to paste the mouth of alilled paper bag, because it would not only take too long for the pasteto dry, but with many substances of a deliquescent or hygroscopicnaturehsuch as salt, the bag would soon open. Neither can the top of anordinaryv bag be sewed up, because the stitches would tear the paper.

The object of the present invention 1s to providea, strong paper bagsuitable for packaging Hour, cement, salt, sugar, charcoal, etc., andwhich bag can be sewed, 1n contradistinction to pasted bags, or cloth bas.

nother object is to provide a waterproof bag, the edges of which may bepasted, 'if desired, and one or both ends sewed.

The invention consists of the parts andthe construction and combinationof parts as hereinafter more fully described and claimed, havingreference to theI accompanying drawings, in which Figure l is a Fig. 2is a like 3 is a view of a water-proofed bag.

ln practicing my invention,'l[-employ a suitable grade of paper,preferably, tough. manila; and this paper may be if desired, subjectedto any suitable treatment, as paraliining, to render it water-proof.

rlhe bag may be made up in several ways. As shown in Fig. 1, one end, as2, and one side, as 3, are sewed up on an ordinary bag sewing machine;the inside of the mouth of the bag first having applied to Ait asuitable any appropriate lmaterial, as a fabric or cloth 4t. In sewingthe bag, so as to paper; and I desire it to be understood thatperspective view of the bag. view, modified form. Fig.-

side of the bag, one edge of the paper from which the bag is made isallowed to extend beyond'the other edge, soA as to form the marginalstrip 5, which strip is later folded over and pasted down; as likewiseis the end margin 6; thus giving a finished appearance to the bag. Thereinforcing strip 4 at the mouth of the bag permits of the bag beingeasily sewed up on a machine, after filling.

l/Vhere a water-proof paper bag is used, it is practical, under somecircumstances, simply to paste the sides and ends, applying areinforcing strip'around the mouth of the give sullicient body` to sewthrough after the bag has been filled. Again, as shown in Fig. 2, thereinforcing' strip 4 may be extended not only across the mouth of thebag, but. down the sides and across the bottom; thus making a verystrong bag which can be sewed up, and inV which there is no danger of.any part tearing out.

The invention comprehends essentially .a paper bag which is reinforcedalong one or more of its edges which are to be sewed; of course, theunderlying principle of which is apaper bag which can be sewed, andwhich bag will always be essentially a paper bag.

Under some circumstances, instead of using a cloth strip, as l or 4, forreinforcing purposes, l may employ an eXtra thickness of heavy paper, orspecially treated by a reinforcing strip of fabric, l mean anythingwhich will perform the desired function, and which is the equivalent inthis environment of the clothstrip specifically mentioned.

The chief difficulty in making a waterproof paper bag or in using awater-proofed paper for bags, is the lack of a paste strong enough toinsure the pasted edges of the paper withstanding the strain. Mostwaterproof paper has more or less oil init, which operates against theproper taking hold by the adhesive, and a very slight strain separatesthe united edges of the paper. Paper that is not water-proof can be'pasted so strongly that the pasted edges'or the over- 105 lappingportions of the pasted vedges are stronger than the body of the paperitself.

One purpose of the present invention 1s the manufacture of a bag pastedat the sides and one end prior to water-proofing. After the bag is madeup the whole bag may be Water-proofed by the use of paraffin, oil,

, mitting of the sewing of varnish, or other suitable water-proofingagent, or just the edges of the bag may be water-proofed; the mouth ofthe bag.- in all cases being preferably reinforced with a v 1. A newarticle of manufacture comprising a paper bag having a reinforcing,strip permanently attached inside of the ag at its mouth end to permitof the sewing of the bag after filling, without tearing the paper.

2. A'sa new article of manufacture, a

waterproof paper bag sewed at the edges, the edges folded over the sewedpart and pasted down, and reinforcing means permanently attached to thebag at the mouth of the bag, andl prior to filling and sewing, to permitthe bag to be sewed up after lling.

3. A new article of manufacture comprising a paper bag made of anunwaterproofed sheet with the side edges and ends pasted, said baghaving a strip of fabric of a different character permanently attachedinside of the bag andl at its mouth end and with the edge of the stripsubstantially flush with the mouth edge of the bagsaid strip pere bagafter filly mg, strip concealed when the bag is sewed.

4. A new article of manufacture comprising a paper bag made of anunwate'proofed sheet with the side edges and ends pasted, said baghaving a stripvof fabric of a different character permanently attachedat its mouth end to permit of the sewing of the bag after lling, withouttearingJthe paper, said pasted bag when completed eing treated With awaterproofing composition.

5. A bag made from a sheet of paper to one side of whichY sheet ispasted prior to folding, a reinforcing strip of fabric disposed at oneend of the bag when folded, the side edges of the sheet fianking saidreinforcing strip, being folded and pasted to form a tube, and the endof said tu-be oppo` site to that containing the reinforcing strip beingclosed.

6. A closed sack comprising a paper body portion with a clothreinforcing striparound the inside edge of the mouth of the bag, and aline of stitching passed through the paper body portion and cloth stripfor closing' the sack. g

Intestimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

JOHN F. AMES.

Witnesses:

CLARE H. WHITNEY, S. A. COK.

lwithout tearing the paper, and said f

